Home / 284,740.47-393,040.79-163,929.90

Finding the Fourth Proportional to 284,740.47, 393,040.79 and 163,929.90

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Solution

The fourth proportional to 284,740.47, 393,040.79 and 163,929.90 is: 226,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,740.47 : 393,040.79 = 163,929.90 : x
  2. Step 2: Convert to fraction form
    284,740.47/393,040.79 = 163,929.90/x
  3. Step 3: Cross multiply
    284,740.47x = 393,040.79 × 163,929.90
  4. Step 4: Simplify right side
    284,740.47x = 64,431,137,400.62
  5. Step 5: Solve for x
    x = 64,431,137,400.62/284,740.47
  6. Step 6: Final answer
    x = 226,280.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.